Improvement in tinners  stocks



'Pa-tented'lsepf. 24, 1878,

H10. WOOL-SON, Tnners Stocks. Np. 208,451.

NrrEn STATESPATENT FFIGE.

HENRY O.-VOOLSON, OF BUFFALO, NEW YORK.

IMPROVEMENT IN TINNERS STOCKS.

Specication forming part of Letters Patent No. 208,451, dated September24, 1878; application filed July 13, 1878.

To all 'whom t may concern.'

Beit known that I, HENRY C. WooLsoN, of the city of Buffalo, in thecounty ofy Erie and State of New York, have invented new and usefulImprovements in Tinners7 Stocks, of which the following is aspecification, reference being had to the accompanying drawing.

This invention relates to that kind of stocks which are designed tosecure beading and similar machines to the work-bench. Heretofore thesestocks have generally been constructed with a tapering lower endpenetrating the bench, and secured thereto by a wedge-key passingthrough a slot in the tapering end on the lower side of the bench. Theupper end of these stocks is generally provided with a socket, in whichthe shank of the machine is secured by a set-screw. These stocks areobjectionable, for the reason that the wedge-keys are frequently lost ormislaid, causing great delay and annoyance, and that the upper socketedends of the stocks occasionally split open, whereby the stock isdestroyed. The object of my invention is to construct a stock whichshall be free from these defects.

My invention consists, first, in the peculiar means for securing theslotted end of the stock to the bench 3 also, in the means of securingthe machine to the stock, and in the peculiar construction of thelatter, as will be hereinafter fully set forth.

ln the accompanying drawings, Figure 1 is a longitudinal section of myimproved stock. Fig. 2 is a front elevation thereof. Fig. 3 is a sideelevation thereof. Fig. 4 is a horizontal section in line xx, Fig. 2.Fig. 5 is a horizontal section in line y y, Fig. 3. Fig. 6 is aperspective view of the sliding bar. Fig. 7 is a perspective view of thejaw.

Like letters of reference designate like parts in each of the figures.

A represents the work-bench, and B a beading or other machine used bytinners. The stock, by means of which the machine is secured to thebench, is composed of two circular plates, G D, connected by uprightposts d and a tapering shank, E, formed with or secured to the underside of the lower plate, D. The shank E is made bifurcated or composedof two legs, made tapering on their outer sides and parallel on theiradjacent sides, so as to receive between them a bar, F, which is held incontact with the legs E by means of the curved form of its sides, asshown in Fig. 5, or in any other suitable manner. The upper end of thebar F projects above the plate D, and is provided with an opening, g.

H is a screw-bolt passing centrally through the upper plate, C, of thestock, and bearing with its head upon the base-plate of the beading orother machine which it is desired to secure to the stock. The lowerthreaded end ofthe bolt H enters the upper end of the bar F, and isiirmly secured thereto by a screwnut, h, arranged in the opening g ofthe bar F., lis a vertically-elongated opening formed in the lower endof the bar F, and K a lever pivoted to the under side of the work-benchA by means of a link, 7c, and eye l. The free end of the lever K engagesin the opening I of the bar F, and is pressed downward by means of athumb-screw, M, passing through a threaded opening in the lever K, andbearing against the under side of the bench A. a represents two lugsformed on opposing sides of the bar F at the lower end thereof, andengaging into corresponding recesses n in the tapering legs E, for thepurpose of preventing the bar F from being turned in said legs or jaws.ois a loop secured to the under side of the bench A, so as to preventthe free end of the lever K from dropping down when disengaged from thestock. The upper plate, G, of the stock is preferably provided with acircular opening for the reception of a short circular shank formed onthe under side of the base plate of the machine.

When it is desired to secure a machine to the stock, the machine isplaced upon the top plate, C, and secured by means of the bolt H to thebar F. The lever K is then inserted into the open-ing I of the bar F,when, by tightening the screw M, the bar F is drawn downward, and thisdraft is transmitted by the bolt H to the base plate of the machine,which latter is thereby held tightly against the top plate, C, of thestock, and the stock at the same time pressed tightly into the openingof the bench. Upon loosening the screw M or the nut h of the bolt H themachine can be turned on the top plate, C, of the stock, so as to occupyany desired position.

By means of the locking-lever K the machine is firmly secured to thestock and the latter to the bench in a very simple and eficient manner.The lockinglever K, being permanently attached to the bench, is alwaysready for use, and all delay by reason of the loss of detached wedgekeysis avoided.

It is also obvious that the machine is more securely attached to thestoel; than it would be by the use of an ordinary socket and setscrew.

I claim as my invention- 1. The combination, with the stock C d D E F,of the 1ocking1ever K, pivot-ed to the nnder side of the bench, andprovided with a fastening-screw, M, substantially as set forth. 2. Atinners stock composed of the plates C D, connecting-pieces d, tapering`jaiv E, and sliding,` bar F, adapted to have its upper end connectedwith the machine and to receive a locking device in its lower end,substantially as set forth.

3. The combination, with the stock C d D E, of the sliding bar F,provided with openings g I, screw-bolt H,1ocking1ever K, andfastening-screw M, substantially as set forth.

4. The combination, with the stock C d D, of the tapering jaw E,provided with recesses u, and the sliding bar F, constructed withcorresponding` lugs n, substantially as set forth.

HENRY C. WOOLSON.

Witnesses:

JNO. J. BONNER, CHAs. J. BUUHHEIT.

